Do not for a minute think you need to follow this recipe exactly. Just don't add so many extra ingredients that you don't have enough dressing. Cannelini beans are a great sub for chickpeas, you can add sundried tomatoes in the winter instead of fresh, add chunks of fresh mozzarella or pieces of fontina or Havarti cheese instead of Parmesan. The original recipe calls for provolone. Radicchio looks so pretty, but arugula would taste great, too.